Etymology

loperamide

L1O1P3E1R1A1M3I1D2E1

Today it means: A synthetic antidiarrheal agent of the opiate class (trademark Imodium) that slows intestinal peristalsis and is taken orally in the form of its hydrochloride C₂₉H₃₃ClN₂O₂·HCl to control acute nonspecific diarrhea or chronic diarrhea associated with inflammatory bowel disease or to reduce fecal volume discharged from ileostomies. Full definition →

English amide ← Proto-Indo-European *dʰeh₁- ← Latin ammoniacus
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The story

  1. Proto-Indo-European*ǵʰelh₃-
  2. Proto-Indo-European*ǵʰl̥h₃rós
  3. Proto-Hellenic*kʰlōrós
  4. Ancient Greekχλωρός (khlōrós)
  5. English(ch)lo(ro)-
  6. Ancient Greekπέπερῐ (péperĭ)
  7. Latinpiper
  8. English(pi)per(idine)
  9. Egyptianjmn
  10. Ancient GreekᾸ̓́μμων (Ắmmōn)
  11. LatinAmmōn
  12. Latinammoniacus
  13. Englishammonia
  14. Proto-Indo-European*dʰeh₁-
  15. Englishamide
  16. English todayloperamide

From (ch)lo(ro)- + (pi)per(idine) + -amide.

Etymology from Wiktionary, CC BY-SA 4.0.